<template>
    <div>
        <!-- 面包屑区域 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>商品管理</el-breadcrumb-item>
            <el-breadcrumb-item>商品列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!--- 卡片式图 --->
        <el-card>
            <el-row :gutter="20">
                <el-col :span="12">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList"> 
                        <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="goAddpage">添加商品</el-button>
                </el-col>
            </el-row>

            <!-- table表格区 --->
            <el-table :data="goodslist" border stripe>
                <el-table-column label="序号" type="index"></el-table-column>
                <el-table-column label="商品名称" prop="goods_name"></el-table-column>
                <el-table-column label="商品价格(元)" prop="goods_price" width="70"></el-table-column>
                <el-table-column label="商品重量" prop="goods_weight" width="95"></el-table-column>
                <el-table-column label="创建时间" prop="add_time" width="140">
                    <template slot-scope="scope">
                        {{ scope.row.add_time | dateFormat }}
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="120">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="editById(scope.row.goods_id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini"  @click="removeItemInId(scope.row.goods_id)"></el-button>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区 -->
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[10, 25, 40]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
            </el-pagination>
        </el-card>

        <!-- 添加分类的对话框 --->
        <el-dialog
        title="修改商品"
        :visible.sync="editDialogVisible"
        width="50%" @close="editDialogClosed">
        <!-- 主体区域 -->
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="20%">
            <el-form-item label="商品名称：" prop="goods_name">
                <el-input v-model="editForm.goods_name" disabled></el-input>
            </el-form-item>
            <el-form-item label="商品价格：" prop="goods_price">
                <el-input v-model="editForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品重量：" prop="goods_weight">
                <el-input v-model="editForm.goods_weight" disabled></el-input>
            </el-form-item>
        </el-form>
        <!-- 底部区域 @click="setRight"-->
        <span slot="footer" class="dialog-footer">
            <el-button @click="editDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="editGood">确 定</el-button>
        </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data() {
        return {
            // 查询参数对象
            queryInfo: {
                query: '',
                pagenum: 1,
                pagesize: 10
            },
            // 商品列表
            goodslist: [],
            // 总数据条数
            total: 0,
            // 修改对话框的显示与隐藏
            editDialogVisible: false,
            editForm: {},
            editFormRules: {
                goods_name: [
                    {required: true, message: '请输入商品名称', trigger: 'blur'}
                ],
                goods_price: [
                    {required: true, message: '请输入商品价格', trigger: 'blur'}
                ],
                goods_weight: [
                    {required: true, message: '请输入商品重量', trigger: 'blur'}
                ]
            },
        }
    },
    created() {
        this.getGoodsList()
    },
    methods: {
        // 根据分页获取对应的商品列表
        async getGoodsList() {
            const { data: res } = await this.$http.get('goods', { params: this.queryInfo })

            if(res.meta.status !== 200) {
                return this.$message.error('获取商品列表数据失败！')
            }

            this.goodslist = res.data.goods
            this.total = res.data.total
        },
        // 
        handleSizeChange(newSize) {
            this.queryInfo.pagesize = newSize
            this.getGoodsList()
        },
        // 
        handleCurrentChange(newPage) {
            this.queryInfo.pagenum = newPage
            this.getGoodsList()
        },
        // 删除商品
        async removeById(goods_id) {
            const confirmResult = await this.$confirm('此操作将永久删除该数据, 是否继续?', '提示', {
                showConfirmButton: true,
                showCancelButton: true,
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)

            if(confirmResult !== 'confirm') {
                return this.$message.info('取消了删除')
            }
            const { data: res } = await this.$http.delete(`goods/${goods_id}`)
            if(res.meta.status !== 200) {
                return this.$message.error('删除参数失败！')
            }

            this.$message.success('删除参数成功！')
            this.getGoodsList()
        },
        // 添加商品
        goAddpage() {
            this.$router.push('/goods/add')
        },
        
        // 获取修改对话框数据
        async editById(goods_id) {
            const { data: res } = await this.$http.get('goods/' + goods_id)
            if(res.meta.status !== 200) {
                return this.$message.error('查询商品信息失败！');
            }
            this.editForm = res.data
            this.editDialogVisible = true
        },
        editDialogClosed() {
            this.$refs.editFormRef.resetFields();
        },
        //商品信息修改
        editGood() {
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                console.log(this.goods_id);
                // 发起修改商品信息请求
                const {  data: res } = await this.$http.put(`goods/${this.editForm.goods_id}/pics`, {
                    goods_price: this.editForm.goods_price
                })
                
                this.editDialogVisible = false
                this.getGoodsList()
                this.$message.success('更新商品信息成功！');
            })
        },
        async removeItemInId(goods_id) {
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                showConfirmButton: true,
                showCancelButton: true,
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err => err)

            if(confirmResult !== 'confirm') {
                return this.$message.info('取消删除')
            }
            const { data: res } = await this.$http.delete('goods/' + goods_id)
            if(res.meta.status !== 200) {
                return this.$message.error('删除用户信息失败')
            }
            this.$message.success('删除用户信息成功')
            this.getGoodsList()
        },

    },
}
</script>

<style lang="less" scoped>
    
</style>